39 lines
1.4 KiB
Plaintext
39 lines
1.4 KiB
Plaintext
;;********************************************************************************
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;; @file
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;; @brief Simple PS/2 keyboard handler
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;; @ingroup libs
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;; @details:
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;; This module processes keyboard scancodes from the ps2_keyboard driver.
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;; It requires a PS/2 keyboard that supports scancode set 3.
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;;
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;; @section what What it does
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;; - swallow break (release) scancodes
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;;
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;; This handler is designed for debug purposes.
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;;
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;; @section usage How to use it
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;; Call `kb::init` and check if it was successful (`Z = 1`).
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;; In your program loop, check if kb::scancode is 0. If it is not, a key has been pressed.
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;;
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;; @subsection change_behaviour Changing the keyboard behaviour
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;; You can change the typematic rate and delay (see PS/2 keyboard command `0xF3`)
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;; and the typematic behavior (make, make/release, typematic) for all keys.
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;;
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;; You may also send the echo (`0xEE`) and identify (`0xF2`) commands to the keyboard.
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;;********************************************************************************
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.ifndef INCLUDE_KEYBOARD_SIMPLE
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INCLUDE_KEYBOARD_SIMPLE = 1
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.include "ps2_keyboard.h65"
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;;********************************************************************************
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;; @brief Simple Keyboard Handler
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;;********************************************************************************
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.scope skb
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Import skb, init, scancode
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K_BREAK = $F0
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.endscope
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.endif ; guard
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